When pregnant women are pregnant, their body temperature will be higher than usual due to the hormone level in their body. 37.3℃ is not necessarily a fever, but depends on the specific symptoms. The body temperature of a normal person is generally between 36.2-37.2°C. The body temperature of a pregnant woman will be higher than that of a non-pregnant woman by about 0.3°C due to the influence of hormone levels in her body. 37.3°C is the normal body temperature in early pregnancy, so if there are no other symptoms, there is no need to worry too much and no need for treatment. If you have symptoms such as dizziness, headache, fatigue and weakness, you should pay attention to the possibility of fever, it is recommended to go to the hospital in time. Do not take drugs at your own discretion during pregnancy, you should use them under the guidance of a doctor to avoid some of them affecting the normal development of the fetus. In addition, due to hormonal changes in the body, pregnant women may also have cold and heat fear in the early stage, so pay attention to keep warm and try not to make yourself sick. Take proper activities to improve immunity, pay attention to rest, combine work and rest, and do pregnancy tests regularly.